FM Transmitter, AGPtek Bluetooth 4.2 Wireless in-Car Car Kit Radio Adapter with QC 3.0 USB Fast Car Charger, Supports 3.5mm Audio Cable & TF Card Play, 1.65 Inch Large Screen & Super Bass Latest Bluetooth v4.2 EDR and Supper Bass: compared to earlier or older versions like Bluetooth V2.0, V 2.1, or V3.0, Bluetooth V4.2 consumes much less energy and lasts much longer; EDR(Enhanced Data Rate), which ensures a faster data transmission rate and much more stable connection between a Bluetooth device and the audio receiver enjoying lossless music and auditory feast during those long drives. Large Key LCD backlight display for Easy Operation; 1.65 Inch large LCD backlight display song nameincoming phone number and shows your car's battery level with Lower Voltage Alarm when car start; Can rotate the LCD display screen in 180-degree gooseneck for optimal viewing comfort; Turn off the FM transmitter: long pressing the next song key for 5 seconds, it will turn off the FM and Bluetooth functions keep charging function. Dual USB Ports Intelligent fast charging: input 12-24 V; Output 2 USB ports: smart 2.4 A charge port which can intelligently identify android or iPhone devices and QC3.0 fast charge port that Charging your cellphones or other devices in the shortest time while driving. Three Playing Modes and Broad compatibility: this radio adapter works with Bluetooth compatible devices, like iPhone, iPad, iPod, tablet, smartphones or MP3 player, you can transfer music in those devices to car audio via 3.5 mm audio cable; Support TF/ Micro SD card in FAT format up to 32G; Support A2DP; Support MP3/ WMA format; Also support AUX output and input High clear Hands-free Calling and Callback: adopted advanced interference and noise cancellation technology - CVC technology creates full duplex sound and suppresses noise and wind; Built- in microphone feature supports hands-free talking reduce interference. Plus, you can double-click the hands-free knob to call back. Siri Available.